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| Experiment | Age of pigs (days) | No. GF pigs | No. colonised pigs |
| 1 | 0 | 5 | N/A |
| 2 | 5 | 3 | 3 |
| 3 | 21 | 3 | 4 |
| 4 | 21 | 1 | 2 |
Four experiments were performed with between five and seven pigs in each. Pigs were euthanised and samples taken either at 0 (1 experiment), 5 (1 experiment) or 21 (2 experiments) days of age.
